Display apparatus for displaying 3d images

Abstract

Recent production methods for 3D video as a general rule generate stereo images in a same phase of movement. The left and right images of a stereo pair thus image the recorded (or rendered) scene at a same point of time. Correct reproduction consequently requires the two images to be shown concurrently. This is, however, not true for all apparatuses such as, for example, 3D television sets including the so-called shutter technology, which show the left and right images in temporal succession. This temporally offset reproduction of the two stereo images results in clearly perceivable image errors. The invention describes a method for compensating such image errors. This is achieved by interpolating the images of one of the channels.

1 . A display apparatus for displaying 3D image signals, the 3D image signals comprising two channels of image sequences for the left and the right eye of a viewer, wherein images in each of the two channels occur at substantially equal time intervals from each other, the display apparatus comprising
 a display screen for displaying the 3D image signals, and   a control unit for controlling the display screen to display the 3D image signals,   wherein the control unit is adapted to derive consecutive images from one of the two channels (L) and display the said images on the display screen at first times situated at substantially equal time intervals, and   to derive consecutive images from the other one of the two channels and display the said images on the display screen at second times situated at substantially equal time intervals, the second times being situated between the first times,   wherein the control unit comprises an interpolation circuit for interpolating in every instance at least two consecutive images in the sequence of images of the other one of the two channels in order to generate interpolated images, and in that the control unit furthermore is adapted to display the consecutive interpolated images on the display screen at the said second times.   
     
     
         2 . The display apparatus of  claim 1 , wherein the control unit is further provided with a determination circuit for determining a movement speed in consecutive images of the other one of the two channels, and in that the interpolation circuit is adapted to interpolate at least two consecutive images of the other one of the two channels in dependence on the detected movement. 
     
     
         3 . The display apparatus of  claim 1 , wherein the control circuit is adapted to interpolate at least two consecutive images of the other one of the two channels in dependence on a time interval between first and second times. 
     
     
         4 . The display apparatus of  claim 2 , wherein the control circuit is adapted to interpolate at least two consecutive images of the other one of the two channels in dependence on a time interval between first and second times.